I have issues before with sun race thumb shifters my solution was to open it up and remove the bits that did the indexing and convert it to friction only. Worked a treat after that.
In conclusion, they are shit at indexing?
I would get a 9 speed shimano thumb shifter :-)
@MCamb started
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I have issues before with sun race thumb shifters my solution was to open it up and remove the bits that did the indexing and convert it to friction only. Worked a treat after that.